Glad to know tuk tuk sound is resolved i saw your post in another thread of mine. Brother to check the actual potential of your bike you should have checked its top speed before letting the mechanic to adjust its valves or tuning. I believe many mechanics as idiot from factory bike comes on the settings recommended for engine mechanics do their ustaadi and do not follow what company recommends.
between 105km/h is good top speed, wind may be the factor working opposite for you that day. It may go 110km/h when wind is not disturbing. Cg dream is very good enjoyable powerful machine its really fun to ride do not regret your decision. my cg dream has crossed 10k km now and still performing like brand new and i love it.
Except for the traditional issues of ohv engine, only thing i do not like about this bike visor noise but which does not disturb me anymore as i have adjusted my mind for it. Major Pros of cg dream are the stylish looks,comfort & power. Compare to old cg alot alot better fun to ride machine.